Publications by authors named "Luke Putnam"

Background: Laparoscopic emergent inguinal hernia repair remains controversial despite studies suggesting it is safe and feasible. Variables associated with laparoscopic compared with open emergent inguinal hernia repair are currently not well described. This study aims to investigate patient characteristics and risk factors associated with laparoscopic emergent inguinal hernia repair.

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Article Synopsis
  • Various anastomotic and reconstruction techniques were assessed in patients undergoing minimally invasive total (miTG) and distal gastrectomy (miDG) to understand their impact on postoperative complications.
  • A study involving over 4,200 patients found that miTG had significantly higher rates of complications like anastomotic leakage and overall morbidity compared to miDG.
  • The findings suggest that miDG is preferable for patients needing surgery, while linear stapled techniques should be favored in miTG to minimize risks.*
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Background: Gastric cancer is the 5th most common malignancy worldwide. Surgical treatment for the disease can often be highly morbid, especially in elderly patients. The modified 5-item frailty index (mFI-5), a recently developed tool for assessing patient frailty, has been shown to be an effective predictor of post-operative outcomes in various surgical fields.

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Purpose: Following laparoscopic anti-reflux surgery (LARS), recurrence of hiatal hernia is common. Patients with symptomatic recurrence typically undergo revision of the fundoplication or conversion to magnetic sphincter augmentation (MSA) in addition to cruroplasty. However, patients with an intact fundoplication or MSA may only require repeat cruroplasty to repair their recurrent hiatal hernia.

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Purpose: Magnetic Sphincter Augmentation (MSA) is an FDA-approved anti-reflux procedure with comparable outcomes to fundoplication. However, most data regarding its use are limited to single or small multicenter studies which may limit the generalizability of its efficacy. The purpose of this study is to evaluate the outcomes of patients undergoing MSA vs fundoplication in a national database.

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Magnetic sphincter augmentation (MSA) is an anti-reflux procedure with comparable outcomes to fundoplication, yet its use in patients with larger hiatal or paraesophageal hernias has not been widely reported. This review discusses the history of MSA and how its utilization has evolved from initial Food and Drug Administration (FDA) approval in 2012 for patients with small hernias to its contemporary use in patients with paraesophageal hernias and beyond.

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Introduction: Although mortality rates after esophagectomy have decreased over the last 30 years, anastomotic leaks still commonly persist and portend significant morbidity. Previous studies have analyzed patient and perio-perative risk factors for leaks, yet data describing the association of leaks and an open or minimally invasive approach are lacking. The purpose of this study was to evaluate the impact of operative approach on leak rates and subsequent management of the leaks.

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Background: Minimally invasive approaches to esophagectomy have gained popularity worldwide; however, unplanned conversion to an open approach is not uncommon. This study sought to investigate risk factors associated with converting to an open approach and to evaluate outcomes following conversion.

Methods: Patients undergoing minimally invasive esophagectomy (MIE) for cancer were identified using the 2016-2019 Procedure Targeted NSQIP Database.

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Background: The ratio of hernia size to fascial defect size, termed the hernia-to-neck ratio (HNR), has been proposed as a novel predictive factor for umbilical hernia complications. HNR ≥ 2.5 has been suggested to warrant surgery due to association with bowel strangulation, incarceration, and necrosis.

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Background: Magnetic sphincter augmentation (MSA) is an effective treatment for gastroesophageal reflux disease (GERD). However, the impact of obesity on MSA outcomes is unknown. The objective of this study was to evaluate the effectiveness of MSA in patients with GERD and obesity.

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Gastroesophageal reflux disease (GERD) is steadily increasing in incidence and now affects 18% to 28% of the population in the United States. A thorough understanding of the pathophysiology underlying this disease is necessary to improve the current standard of care. Most GERD pathophysiology models focus on the lower esophageal sphincter (LES) as the key element which prevents esophageal reflux.

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Introduction: Magnetic sphincter augmentation (MSA) is a safe and effective treatment for patients with gastroesophageal reflux disease (GERD). MSA was initially indicated for patients with GERD and concomitant hiatal hernias < 3 cm. However, excellent short- and intermediate-term outcomes following MSA and hiatal hernia repair in patients with hiatal hernias ≥ 3 cm have been reported.

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Background: Recurrence of hiatal hernia after anti-reflux surgery is common, with past studies reporting recurrence rates of 10-15%. Most patients experience relief from GERD symptoms following initial repair; however, those suffering from recurrence can have symptoms severe enough to warrant another operation. Although the standard of care is to revise the fundoplication or convert to magnetic sphincter augmentation (MSA) in addition to redo cruroplasty, it stands to reason that with an intact fundoplication, a repeat cruroplasty is all that is necessary to alleviate the patients' symptoms.

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Unlabelled: Despite recognizing the occurrence of variances, we noted a low rate of reporting with the established computer variance program. Therefore, we developed and introduced a simple, handwritten variance reporting system. The goal of this study was to compare our pediatric perioperative handwritten variance cards to our established computerized variance reporting system.

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Aortocaval fistulas following endovascular repair of ruptured abdominal aortic aneurysms (rAAA) are rare. We herein describe repair using an Amplatzer Septal Occluder in a 68-year-old male who presented to the emergency department 6 months after ruptured endovascular aneurysm repair (rEVAR) with right heart failure. With the assistance of diagnostic angiography and intravascular ultrasound, the patient was found to have a 1.

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Objectives: A randomized controlled trial was conducted to test the hypothesis that povidone-iodine (PVI) irrigation versus no irrigation (NI) reduces postoperative intra-abdominal abscess (IAA) in children with perforated appendicitis.

Methods: A 100 patient pilot randomized controlled trial was conducted. Consecutive patients with acute perforated appendicitis were randomized (1:1) to PVI or NI from April 2016 to March 2017 and followed for 1 year.

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Background: Initial adoption of minimally invasive esophagectomy (MIE) began in the late 1990s but its surgical technique, perioperative management, and outcome continues to evolve.

Methods: The aim of this study was to examine the evolving changes in the technique, outcome, and new strategies in management of postoperative leaks after MIE was performed at a single institution over a two-decade period. A retrospective chart review of 75 MIE operations was performed between November 2011 and September 2018 and this was compared to the initial series of 104 MIE operations performed by the same group between 1998 and 2007.

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Background: Institutional protocols for preincisional antibiotic prophylaxis can standardize care and improve outcomes. However, challenges remain in compliance with such protocols for urgent or emergent operations. We hypothesized that compliance with an institutional protocol for antibiotic prophylaxis for appendectomy for appendicitis in pediatric patients results in reduced surgical site infections (SSIs) after simple appendectomy.

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Background: The purpose of this study was to identify patient and treatment characteristics associated with early (in hospital) hernia recurrence after congenital diaphragmatic hernia (CDH) repair.

Methods: Data from the Congenital Diaphragmatic Hernia Study Group registry were queried from 2007 to 2015. Recurrence of the diaphragmatic hernia after initial repair and prior to death or discharge was determined at the time of reoperation.

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Background: The minimally invasive surgery (MIS) approach for congenital diaphragmatic hernia (CDH) repair remains controversial. Our objective was to compare outcomes and complications of the MIS and open approaches, with risk-stratification of patients based on defect size and key patient characteristics.

Study Design: The multinational CDH Study Group (CDHSG) registry was queried for the period from 2007 to 2015.

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Objective: The objectives of this study were (i) to evaluate infants with congenital diaphragmatic hernia (CDH) that do not undergo repair, (ii) to identify nonrepair rate by institution, and (iii) to compare institutional outcomes based on nonrepair rate.

Background: Approximately 20% of infants with CDH go unrepaired and the threshold to offer surgical repair is variable.

Methods: Data were abstracted from a multicenter, prospectively collected database.

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Background And Objective: Survival for infants with congenital diaphragmatic hernia (CDH) has gradually improved, yet substantial burden of disease remains. Although larger CDH defect sizes increase mortality, the association between defect size and morbidity has not been reported. Our objective was to evaluate the association of defect size with pulmonary, neurologic, and gastrointestinal morbidity at the time of hospital discharge.

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Background: Growing concerns regarding radiation exposure in children have led to recommendations to minimize computed tomography imaging for appendicitis. We hypothesized that within a metropolitan hospital system (1 children's hospital and 8 non-children's hospitals), use of preoperative computed tomography is much greater in non-children's hospitals.

Methods: We conducted a retrospective study of patients <18 years of age undergoing appendectomy for acute appendicitis from April 2012 to April 2015.

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Background/purpose: The purpose of this study was to describe the outcomes of children with and without congenital heart disease who undergo a Ladd procedure.

Methods: The 2012-2014 National Surgical Quality Improvement Program Pediatric (NSQIP-P) data were queried for patients undergoing a Ladd procedure. Utilizing NSQIP-P definitions, patients were categorized into four cardiac risk groups (none, minor, major, severe) based on severity of cardiac anomalies, previous cardiac procedure(s), and ongoing cardiac dysfunction.

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